Door for silos.



G. W. ZGOK. DOOR FOR SILOS. APPLICATION FILED JUNE 22,1914.

1,]. 17,744. Patented Nov. 17, 1914.

NORRIS PETERS 130.. PHOTO-Ll GEORGE W. ZOOK, OF BUFFALO, KANSAS.

DOOR FOR SILOS.

Specification of Letters Patent.

Patented Nov. 1'7, 1914.

Application filed June 22, 1914. Serial No. 846,581.

To all whom it may concern Be it known that I, GEORGE WV. ZOOK, a citizen of the United States, residin at Buffalo, in the county of Wilson and tate of Kansas, have invented certain new and useful Improvements in Doors for Silos; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to doors for brick or cement silos; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a front view of a portion of a silo provided with a door according to this invention. Fig. 2 is a sectional plan view, taken on the line w:c in Fig. 1. Fig. 3 is a vertical section, taken on the line :l/fl/ in Fig. l.

The silo is formed of blocks of stone, cement, brick, or other suitable material, and it has an inner course of blocks 2 and an outer course of blocks 3, separated by a joint 4 of mortar or cement, and it has similar horizontal joints 5 between the blocks.

The door opening 6 is of any convenient size, and the door 7 fits loosely in the opening 6 and is formed of any approved material, such as wooden planks suitably joined together. The door may extend for the full height of the silo, if desired.

A door post 10 is secured at each side of the door opening, and is formed of rolled metal. The door post has an inwardly proj ecting flange 12 for the door to bear against, and an outwardly projecting flange or web ltwhich is secured in the joint 4 between the inner blocks 2 and the outer blocks 3. Each door post is preferably formed of an angle-shaped bar and a T-shaped bar riveted together as shown, and one flange of the angle-shaped bar is secured in the joint 4 between the blocks. The angle-shaped bar is secured to the T- shaped bar on the opposite side thereof from the door, and the angle-shaped bar 15 has crossbars 17 secured to it.

The crossbars 17 form the steps of a ladder and they are also preferably angleshaped in cross-section. As many crossbars as desirable are provided, according to the height of the door, and crossbars are preferably arranged at the bottom and at the top of the door opening.

Pins 20 are arranged to project from the door, and latch levers 21 are provided, and have slots 22 in their outer end portions which engage pivotally with, and also slide longitudinally on, the pins 20. The inner end portions of the latch levers are pivoted together by a pin 24:, and a stop 25 is provided for holding the levers in line when in a position to lock the door to the door ,posts. The latch levers have beveled end portions 26 which engage slidably with the inwardly projecting flanges 12 against which the door abuts, so that the door is drawn against the said flanges when the parts are in the positions shown in Fig. 2.

The door is released by moving the levers upwardly, as shown in the lower part of Fig. 1. Stay bands 28 are secured to the outwardly projecting flanges 14, and extend around the silo between the inner and the outer blocks.

A silo door constructed in this manner is I very inexpensive to construct, and is not liable to get out of order.

What I claim is:

1. The combination, with a silo formed with two courses of blocks having a vertical joint between them, said silo being provided with a door opening; of bars T-shaped in cross-section, the outer sides of the base flanges of the said bars being arranged vertically against the blocks of one course with their center flanges projecting into the door opening, bars angle-shaped in cross-section and each having the inner side of one flange secured to the inner side of one of the said base flanges and having its other flange secured in the said vertical joint, and a door provided with means for securing it against the central flanges of the T-shaped bars.

2. The combination, with a silo formed of two courses of blocks having a vertical joint between them, said silo being provided with a door opening; of bars T-shaped in crosssection, the outer sides of the base flanges of the said bars being arranged vertically against the blocks of one course with their center flanges projecting intothe door opening, bars angle-shaped in cross-section and each having the inner side of one flange secured to the inner side of one of the said against the central flanges of the T-shaped base flanges and having its other flange sebars. 7 cured in the said vertical joint, crossbars ar- In testimony whereof I have afiixed my ranged one above another, and forming the signature in the presence of two Witnesses. steps of a ladder, and having their ends se- 'GEORGE W. ZOOK. cured to the flanges of the angle-shaped bars Witnesses:

which are secured in the said joint, and a MILES E. CANTY,

door provided With means for securing it F. C. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

